Home / 8,107.80-12,161.74-4,642.62

Finding the Fourth Proportional to 8,107.80, 12,161.74 and 4,642.62

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Solution

The fourth proportional to 8,107.80, 12,161.74 and 4,642.62 is: 6,963.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,107.80 : 12,161.74 = 4,642.62 : x
  2. Step 2: Convert to fraction form
    8,107.80/12,161.74 = 4,642.62/x
  3. Step 3: Cross multiply
    8,107.80x = 12,161.74 × 4,642.62
  4. Step 4: Simplify right side
    8,107.80x = 56,462,337.36
  5. Step 5: Solve for x
    x = 56,462,337.36/8,107.80
  6. Step 6: Final answer
    x = 6,963.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.